Tides Today & Tomorrow in Sag Harbor, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Sag Harbor, NY.
Next low tide : 11:54 am (0.8 ft)
Next high tide : in 6h 16m at 6:32 am (2.0 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:05 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8511629
Common Questions About Tides

Sag Harbor, NY Tides - Jan 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:572.33:072.18:590.19:16-0.17:144:31Third Quarter1Tue
2Wed3:562.34:151.910:010.110:070.07:144:32Third Quarter2Wed
3Thu4:542.45:231.711:010.110:580.17:144:33Third Quarter3Thu
4Fri5:492.46:261.711:580.111:480.27:144:34Third Quarter4Fri
5Sat6:382.47:201.612:520.07:144:35Waning Crescent5Sat
6Sun7:232.58:081.712:370.21:410.07:144:35Waning Crescent6Sun
7Mon8:032.58:501.71:240.22:27-0.17:144:36Waning Crescent7Mon
8Tue8:412.59:291.72:110.23:11-0.27:144:37Waning Crescent8Tue
9Wed9:172.510:051.72:550.23:52-0.27:134:38New Moon9Wed
10Thu9:532.510:381.83:390.14:32-0.27:134:39New Moon10Thu
11Fri10:292.511:121.84:210.15:11-0.27:134:41New Moon11Fri
12Sat11:062.511:461.95:050.15:50-0.27:134:42New Moon12Sat
13Sun11:452.45:490.16:28-0.27:124:43Waxing Crescent13Sun
14Mon12:232.012:252.26:360.17:07-0.17:124:44Waxing Crescent14Mon
15Tue1:022.11:082.17:260.27:46-0.17:124:45Waxing Crescent15Tue
16Wed1:452.21:551.98:200.18:280.07:114:46Waxing Crescent16Wed
17Thu2:322.32:481.89:180.19:150.07:114:47First Quarter17Thu
18Fri3:252.43:471.710:180.010:070.07:104:48First Quarter18Fri
19Sat4:242.64:531.611:180.011:030.07:104:49First Quarter19Sat
20Sun5:262.76:011.612:18-0.27:094:51Waxing Gibbous20Sun
21Mon6:282.87:081.712:03-0.11:17-0.37:084:52Waxing Gibbous21Mon
22Tue7:292.98:101.81:03-0.22:12-0.47:084:53Waxing Gibbous22Tue
23Wed8:273.09:072.02:02-0.33:05-0.57:074:54Full Moon23Wed
24Thu9:223.010:022.13:00-0.33:55-0.67:064:55Full Moon24Thu
25Fri10:162.910:552.33:56-0.44:43-0.67:064:57Full Moon25Fri
26Sat11:072.811:462.44:50-0.45:30-0.67:054:58Full Moon26Sat
27Sun11:582.65:44-0.36:16-0.57:044:59Waning Gibbous27Sun
28Mon12:362.412:472.46:38-0.27:03-0.47:035:00Waning Gibbous28Mon
29Tue1:252.41:372.17:33-0.17:49-0.27:025:02Waning Gibbous29Tue
30Wed2:142.42:301.98:290.08:370.07:015:03Third Quarter30Wed
31Thu3:052.33:281.79:250.19:260.17:015:04Third Quarter31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8511629)

Common Questions About Sag Harbor, NY Tides

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What time does the tide turn (slack tide) in Sag Harbor, NY today?

Slack tide in Sag Harbor, NY is approximately 9:13 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Sag Harbor, NY?

Sag Harbor, NY is currently in a transitional phase. Tonight's moon is 65% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Sag Harbor, NY tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Sag Harbor, NY?

Tide predictions for Sag Harbor, NY come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Sag Harbor, NY?

Tide data for Sag Harbor, NY is sourced from NOAA Station #8511629. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8511629.

What is the moon phase in Sag Harbor, NY tonight?

Tonight the moon over Sag Harbor, NY is First Quarter (65% illuminated). This places Sag Harbor, NY in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA